CREATE OR REPLACE FUNCTION delrow(tablename character varying, colname character varying, item integer)
  RETURNS void AS
$BODY$ BEGIN
EXECUTE ''DELETE FROM '' || quote_ident(tablename)::regclass || '' WHERE '' || quote_ident(colname) || ''=$1'' USING item;
END; $BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100;